4. Boston, Mass.-N.H.-R.I.
AP Photo/Elise Amendola
Commuters hurry to catch their trains at Boston’s North Station.
According to the Massachusetts Bay Transit Authority, mass transit in Boston began in 1631, with ferries connecting the city’s peninsula to the mainland. Today, MBTA still runs commuter ferries, in addition to buses, commuter rail lines, and a subway system that is better known as the “T.”
